Function createContentQuery

packages/core/src/render3/queries/query.ts:501–519

(
  directiveIndex: number,
  predicate: ProviderToken<unknown> | string[] | string,
  flags: QueryFlags,
  read?: ProviderToken<T>,
)

}

export function createContentQuery<T>(
  directiveIndex: number,
  predicate: ProviderToken<unknown> | string[] | string,
  flags: QueryFlags,
  read?: ProviderToken<T>,
): number {
  ngDevMode && assertNumber(flags, 'Expecting flags');
  const tView = getTView();
  if (tView.firstCreatePass) {
    const tNode = getCurrentTNode()!;
    createTQuery(tView, new TQueryMetadata_(predicate, flags, read), tNode.index);
    saveContentQueryAndDirectiveIndex(tView, directiveIndex);
    if ((flags & QueryFlags.isStatic) === QueryFlags.isStatic) {
      tView.staticContentQueries = true;
    }
  }

  return createLQuery<T>(tView, getLView(), flags);
}

/** Splits multiple selectors in the locator. */
function splitQueryMultiSelectors(locator: string): string[] {